Henry howe



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Leners Pafemjlvo; 80,351, dated July 28, 186s.

IMPROVEMENT 1N BOLT-GUTTER.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, HENRY Hown`of Oneonta, in the county ot. Otsego, and State ofrNew Yorlr,I have invented a. new and improved Bolt-Trimmer; and I do hereby declare that the following is a full, clear, and

`exactdescription thereof, which will enable others skilled in the art to make and use the'same, reference being hadto the accompanying drawings, forming part of this specicationyin which- Figure 1 represents a-plan o'rtop view of my improved bolt-trimmer. Figure -2 is an inverted planview of the same. Figui-e 3 isv a detail transverse section of the same, taken `on the plane of the line z as, tig. 2.

Figure 4 is adetail side view of the same.

Similar letters of reference indicate corresponding parts.

This invention relates toa new device for trimming bolts, rivets, and other suitablearticles, and consists oiy a cotta-sliding within the lower part of a. slotted plate, so that' its bottom is ush with the under `side of the plate. Reciprocating motion is impartedby means of an oscillating-cam werkingen the said plate, and by means of a spring-catch, projecting from the rear end of` the cutter. The cutter is supported in the plate hyhaving bevelled edges, which rest upon the similar-shaped inner edges of the'slot in the plate. The cuttingedge of the tool and the corresponding cutting-edge of the p late are set diagonal, so that a drawing cnt is produced on a. reciprocatingputter. A i

' B, in the drawing, represents a metal'plate, attached to one end of a suitable handle, A, and `projecting below the lower face'of thesame. The plate B, is slotted, as shown in 2,'the slot reaching t0 the rear nd of the plate, as shown. The parallel sides of the slot are bevelled, as in fig. 3, so that the slot isnarrower at its lower than at its upper part, while the front edge of the slot isfdiagqn'al to the sides, as shown.

C is' the cutting-tool, of such size as to fit the slot in the plate B( It has bevelled sides, so that it is supported throughout its entire length by the bevelled sides of the slot, and has a diagonal cutting-edge parallelY with the front end of the slot. g

D is a cam, pivoted to the handle A, and connected with a suitable handle, E, as shown: The cam D has a hook, a, which engages into spring-catch b, that projects from the rear end of the cutter,

Aas shown.

i When the cutter is'to be drawn off the abutting edge of the slot, the camisturned into the position shown in fig; 2, it, by'such motienpdrawing the cutter out by the aid of the spring-catch. When something is to be out, the cam is turned intothe position indicatedby dotted linesgiu iig. 1. To facilitate the latter :notion ot' the cutter, fa projecting arm, c, is arranged at its rear end, against which the cam ,strikes at the beginning of -its motion, andby means of-which lateral' strain of the Ymovable cutter is avoided.

By means of a stop, d, the cutter Iis arrested at the end of its stroke. Y

Having thus described my invention, what I claimas new, and desire to secure by Letters Patent, is

The combination ofthe slotted plate B, cam D, spring-catch b, and projecting .arm c, all made and operating substantially as herein shown and described.

HENRY HOWE.

Witnesses;

WM. `F. McNAMAaA, Amex. F. Rosn'rs. 

